CN101362116A - Large-sized energy-saving ore processing equipment and technique - Google Patents
Large-sized energy-saving ore processing equipment and technique Download PDFInfo
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- CN101362116A CN101362116A CNA2008101675032A CN200810167503A CN101362116A CN 101362116 A CN101362116 A CN 101362116A CN A2008101675032 A CNA2008101675032 A CN A2008101675032A CN 200810167503 A CN200810167503 A CN 200810167503A CN 101362116 A CN101362116 A CN 101362116A
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Abstract
The invention pertains to the technical field of iron ore beneficiation, which discloses large-scale energy-saving beneficiating equipment and a technology thereof, in particular relates to a technology of low-grade iron ore beneficiation and beneficiating equipment thereof. The beneficiating technology comprises the following steps of primary jaw-typed crush, secondary efficient crush, dry separation and sieving, milling, high-frequency sieving, wet magnetic separation, and the like. The beneficiating equipment includes a jaw-typed crusher, efficient crushing equipment, a dry separator, an energy-saving ball mill, a high-frequency sieving machine, a wet magnetic separator, and the like. The invention can produce 3,000 tones of hard iron ore and 4,000 tones of soft sand ore; compared with the existing technology and equipment with the same output, the invested cost can be reduced by 70 percent and the energy consumption can be reduced by 80 percent; under the condition of consuming the same amount of electricity, the output and the economic benefit can be raised by 3 times to 4 times, thus making full use of the low-grade iron ore source in China.
Description
Technical field
The present invention relates to the iron ore dressing technical field, particularly various iron ore of low ore grade preparation equipments and technology thereof.
Background technology
Along with the development of domestic steel and iron industry, each iron and steel producer is to the demand of iron ore, and is particularly increasing to the demand of iron ore concentrate.China is big steel country, need 600,000,000 tons of iron ores every year, because domestic high-grad iron ore deposit reserves resource-constrained, need every year imported iron ore stone more than 300,000,000 tons, and external iron ore price, appreciate for successive years, how to utilize the resourceful lean ore resource of domestic reserves just to become the task of top priority (grade is at the lean ore that is below 30%).
In the prior art, the technical process of the lean ore of tradition development and use at present resource comprises the following steps: iron ore is carried out coarse crushing, fine crushing, dry separation screening, ball milling, sub-material, magnetic separation, high frequency screening, secondary magnet, the waste residue that dry separation is sieved out is transported, the mine tailing that magnet is selected is delivered to tailing dam, and fine ore is sent into the concentrate pond.This technology is applicable to that the position product are at the lean ore more than 20%, and for the position product when the iron ore below 20% carries out ore dressing, productivity ratio is too low, cost is too high, particularly the contraposition product are in the sand ore deposit of the extremely low-grade of 3-10%, when handling, can't obtain actual economic benefit with the so-called soft iron ore that is entrained with a large amount of mud soil that forms by decomposed rock at all.Therefore must be improved existing equipment and technology.
Summary of the invention
Purpose of the present invention provides various iron ore of low ore grade preparation equipments and technology thereof, can carry out ore dressing to iron ore of low ore grade effectively, and with comparing of the existing preparation equipment of equal specification, output can improve 3-4 doubly.
The objective of the invention is to be achieved through the following technical solutions.
Large-sized energy-saving ore processing equipment of the present invention and technology, i.e. the ore-dressing technique of iron ore, particularly various iron ore of low ore grade ore-dressing techniques comprise that Hubei Province formula fragmentation, a secondary are efficiently pulverized, dry separation screening, ball milling, high frequency screening, wet magnetic separation.
Concrete steps are as follows: iron ore is expected firmly through after Hubei Province formula fragmentation, or soft material sand ore deposit, directly enter efficient disintegrating apparatus, after efficient the pulverizing, can obtain the thin ore in sand form of 1 millimeter, thin ore in sand form carries out dry type to be roughly selected, and selects 80% waste material and directly delivers to the mine tailing storehouse, grade reaches 50% iron ore and sends into ball mill, reaches 65% the smart powder finished product of iron behind high frequency screening back, the wet magnetic separation.
Efficient preparation equipment of the present invention comprises: jaw crusher, efficient disintegrating apparatus, dry separator, energy-saving ball mill, high frequency screening machine, wet magnetic separator etc.4000 tons in the hard material of this equipment daily output iron ore, 5000 tons in soft material sand ore deposit, compare with equipment with the existing technology of equal production scale, save cost of investment 70%, save energy resource consumption 80%, under the condition of same power consumption, output and economic benefit can improve 3-4 doubly, thereby make full use of domestic iron ore of low ore grade resource.
Coarse fodder in the described storage bin is directly sent into ball mill and is carried out ball milling and partly account for about 20%, and select 80% waste material and directly deliver to the mine tailing storehouse,
Iron ore of low ore grade ore-dressing technique of the present invention and preparation equipment thereof have following advantage:
Owing to set up efficient disintegrating apparatus, will sieve through the material after the efficient pulverizing and dry separation, selected coarse granule Iron Ore Powder grade can reach about 50%, both can send into ball milling and carry out ball milling, can be used as the coarse granule Iron Ore Powder again and sells.
Description of drawings
Fig. 1 is a process chart of the present invention.
The specific embodiment
As shown in Figure 1, iron ore of low ore grade ore-dressing technique of the present invention comprises that Hubei Province formula fragmentation, a secondary are efficiently pulverized, dry separation screening, ball milling, high frequency screening, wet magnetic separation.Following step is arranged: iron ore is expected firmly through after Hubei Province formula fragmentation, or soft material sand ore deposit, directly enter efficient disintegrating apparatus, after efficient the pulverizing, can obtain the thin ore in sand form of 1 millimeter, thin ore in sand form carries out dry type to be roughly selected, and selects 80% waste material and directly delivers to the mine tailing storehouse, grade reaches 50% iron ore and sends into ball mill, reaches 65% the smart powder finished product of iron behind high frequency screening back, the wet magnetic separation.This efficient preparation equipment comprises: jaw crusher 1, efficient disintegrating apparatus 2, dry separator 3, energy-saving ball mill 4, high frequency screening machine 5, wet magnetic separator 6 etc.Efficient preparation equipment of the present invention, 4000 tons in the hard material of daily output iron ore, 5000 tons in soft material sand ore deposit, compare with equipment with the existing technology of equal production scale, save cost of investment 70%, save energy resource consumption 80%, under the condition of same power consumption, output and economic benefit can improve 3-4 doubly, thereby make full use of domestic iron ore of low ore grade resource.
Embodiment: referring to Fig. 1, preparation equipment of the present invention comprises jaw crusher 1, efficient disintegrating apparatus 2, dry separator 3, energy-saving ball mill 4, high frequency screening machine 5, wet magnetic separator 6 compositions; Technology comprises that Hubei Province formula fragmentation, a secondary are efficiently pulverized, dry separation screening, ball milling, high frequency screening and wet magnetic separation.Concrete steps: expect firmly or soft material sand ore deposit through the iron ore after Hubei Province formula fragmentation, directly enter efficient disintegrating apparatus, after efficient the pulverizing, can obtain the thin ore in sand form of 1 millimeter, thin ore in sand form carries out dry type and roughly selects, select 80% waste material and directly deliver to the mine tailing storehouse, grade reaches 40% iron ore and sends into ball mill; Reach 65% the smart powder finished product of iron behind high frequency screening back, the wet magnetic separation.
After will expecting firmly that iron ore is through Hubei Province formula fragmentation, the mineral aggregate that dry separation is sieved out is sent into efficient disintegrating apparatus by storage bin through conveyer belt and is pulverized; Iron ore after efficient the pulverizing is expected firmly, or soft material sand ore deposit, directly enters efficient disintegrating apparatus, can obtain the thin ore in sand form of 1 millimeter, and thin ore in sand form is sent into through conveyer belt and carried out dry type and roughly select; The mineral aggregate that dry separation is sieved out is selected 80% waste material and is directly delivered to the mine tailing storehouse, and grade reaches 50% iron ore and sends into energy-saving ball mill; Mineral aggregate is through behind the energy-saving ball mill, and the iron ore that sieves out is sent into the high frequency screening machine by storage bin through conveyer belt and sieved; High frequency screening back, the iron ore that sieves out are sent into wet magnetic separator by storage bin through conveyer belt; Reach the smart powder finished product of 65% iron after the magnetic separation and can send into product library, the waste material of selecting is directly delivered to the mine tailing storehouse.
Claims (8)
1. large-sized energy-saving ore processing equipment, be suitable for various iron ore of low ore grade ore-dressing techniques and preparation equipment thereof, it is characterized in that: it comprises jaw crusher (1), efficient disintegrating apparatus (2), dry separator (3), energy-saving ball mill (4), high frequency screening machine (5), wet magnetic separator (6) is common forms.
2. large-sized energy-saving ore processing equipment technology is characterized in that: comprise that Hubei Province formula fragmentation, a secondary are efficiently pulverized, dry separation screening, ball milling, high frequency screening and wet magnetic separation; Following step is specifically arranged: expect firmly or soft material sand ore deposit through the iron ore after Hubei Province formula fragmentation, directly enter efficient disintegrating apparatus, after efficient the pulverizing, can obtain the thin ore in sand form of 1 millimeter, thin ore in sand form carries out dry type and roughly selects, select 80% waste material and directly deliver to the mine tailing storehouse, grade reaches 40% iron ore and sends into ball mill; Reach 65% the smart powder finished product of iron behind high frequency screening back, the wet magnetic separation.
3. large-sized energy-saving ore processing equipment technology according to claim 2 is characterized in that: after will expecting firmly that iron ore is through Hubei Province formula fragmentation, the mineral aggregate that dry separation is sieved out is sent into efficient disintegrating apparatus by storage bin through conveyer belt and is pulverized.
4. large-sized energy-saving ore processing equipment technology according to claim 2, it is characterized in that: the iron ore after efficient the pulverizing is expected firmly, or soft material sand ore deposit, directly enters efficient disintegrating apparatus, can obtain the thin ore in sand form of 1 millimeter, thin ore in sand form is sent into through conveyer belt and is carried out dry type and roughly select.
5. large-sized energy-saving ore processing equipment technology according to claim 2 is characterized in that: the mineral aggregate that dry separation is sieved out is selected 80% waste material and is directly delivered to the mine tailing storehouse, and grade reaches 50% iron ore and sends into energy-saving ball mill.
6. large-sized energy-saving ore processing equipment technology according to claim 2 is characterized in that: mineral aggregate is through behind the energy-saving ball mill, and the iron ore that sieves out is sent into the high frequency screening machine by storage bin through conveyer belt and sieved.
7. large-sized energy-saving ore processing equipment technology according to claim 2 is characterized in that: high frequency screening back, the iron ore that sieves out are sent into wet magnetic separator by storage bin through conveyer belt.
8. large-sized energy-saving ore processing equipment technology according to claim 2 is characterized in that: reach the smart powder finished product of 65% iron after the magnetic separation and can send into product library, the waste material of selecting is directly delivered to the mine tailing storehouse.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008101675032A CN101362116A (en) | 2008-10-09 | 2008-10-09 | Large-sized energy-saving ore processing equipment and technique |
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| CNA2008101675032A CN101362116A (en) | 2008-10-09 | 2008-10-09 | Large-sized energy-saving ore processing equipment and technique |
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| CN101362116A true CN101362116A (en) | 2009-02-11 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101623670B (en) * | 2009-07-27 | 2011-08-17 | 山东科力华电磁设备有限公司 | Technique for extracting iron ore concentrate powder from sand iron mine of gobi desert |
| CN102240587A (en) * | 2011-05-16 | 2011-11-16 | 成都利君实业股份有限公司 | Wet-type magnetic separation method of magnetite |
| CN103060493A (en) * | 2012-06-29 | 2013-04-24 | 南京梅山冶金发展有限公司 | Steel slag water washing ball milling manufacture processing craft |
| CN103894285A (en) * | 2014-04-14 | 2014-07-02 | 何征徽 | Magnetic iron ore concentrating technology |
| CN104107759A (en) * | 2014-07-29 | 2014-10-22 | 山东华联矿业股份有限公司 | Flotation tailing iron recycling device and method |
-
2008
- 2008-10-09 CN CNA2008101675032A patent/CN101362116A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101623670B (en) * | 2009-07-27 | 2011-08-17 | 山东科力华电磁设备有限公司 | Technique for extracting iron ore concentrate powder from sand iron mine of gobi desert |
| CN102240587A (en) * | 2011-05-16 | 2011-11-16 | 成都利君实业股份有限公司 | Wet-type magnetic separation method of magnetite |
| CN103060493A (en) * | 2012-06-29 | 2013-04-24 | 南京梅山冶金发展有限公司 | Steel slag water washing ball milling manufacture processing craft |
| CN103894285A (en) * | 2014-04-14 | 2014-07-02 | 何征徽 | Magnetic iron ore concentrating technology |
| CN103894285B (en) * | 2014-04-14 | 2016-03-16 | 何征徽 | A kind of magnetic iron ore dressing process |
| CN104107759A (en) * | 2014-07-29 | 2014-10-22 | 山东华联矿业股份有限公司 | Flotation tailing iron recycling device and method |
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